Method of carbureting air.



0. DAWSON. METHOD OF OARBURETING AIR. APPLICATION FILED D110, '1, 1910.

1,019,430, Patented Mar.5, 1912.

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WITNESSES INVENTOR $61719 Mia/[ COLUMBIA PLANDGRAPH co WASHINGTON D cROBERT C. DAWSON, OF MGKEESPORT, PENNSYLVANIA.

METHOD OF CARIBURETING AIR.

Specification of Letters Patent.

Patented Mar. 5, 1912.

Original application filed May 14, 1910, Serial No. 561,297. Divided andthis application filed December 7,

To all whom it may concern:

Be it known that I, Ronnnr C. Dawson, a citizen of the United States ofAmerica, residing at McKeesport, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inMethods of Carbureting Air, of which the following is a specification,reference being had therein to the accompanying drawing.

This invention relates to a method of carbureting air, is a division ofapplication Serial No. 561,297, filed by me May 14, 1910, in which theapparatus is claimed, and has for its object to provide a method forsuch purpose which will thoroughly enrich the air with hydrocarbon sothat the ultimate product will be thoroughly satisfactory when used forilluminating purposes and which will be thoroughly efficient for use inconnection with explosive engines.

A further object of this invention is to provide a method of carburetingair having as a step thereof the exhausting of the residual hydrocarbonfrom the carbureting chamber when the operation of earbureting isdiscontinued, whereby the possibility of an explosion, generally due tothe carbureting chamber containing hydrocarbon, when an apparatus is notworking, is reduced to a minimum.

As showing one form of an apparatus capable of carrying out the method,reference is had to the accompanying drawings in which Figure 1 is avertical section of the apparatus, and Fig. 2 is a transverse section ofthe carbureting chamber, the latter broken 7 away at its top.

The method in accordance with this invention comprises the supplying ofthe hy droca-rbon by fluid pressure in the form of jet-s to acarbureting chamber, and simultaneously with the supplying of thehydrocarbon breaking up the jets whereby a part of the hydrocarbon willbe volatilized and ascend to the upper portion of the carburetingchamber, then passing jets of air of uniform pressure, first through theliquid and then through the volatilized hydrocarbon, whereby when-theair first passes through the liquid hydrocarbon, it will be enriched bytaking up the latter and then admixing it with the volatilizedhydrocarbon whereby it will be further enriched, and then eX- Serial No.596,137.

hausting the residual hydrocarbon contained in the mixing chamber whenthe hy drocarbon supply thereto is discontinued.

Referring to the drawings which illustrate one form of'apparatus capableof carrying out the method, A. denotes a reservoir which is located inthe ground or exteriorly of the building where the apparatus or machineis used, the reservoir, by way of 6X- ample, is shown as formed of ametallic tank which may be formed of any suitable material and isprovided with a vertically disposed inlet nipple B normally closed by adetachable cap C and it is through the nipple B that the reservoir issupplied with hydrocarbon. The nipple B is connected to a cover B whichis secured in position by the hold-fast device B Extending through thecover B and into the reservoir A and to a point in proximity to thebottom of the reservoir is a hydrocarbon supply pipe D which is flaredat its lower end to allow the hydrocarbon to easily enter the same. Thepipe D extends into and substantially from end to end of a carburetingtank E which constitutes a carbureting chamber E. That portion of thepipe D which is arranged within the carbureting chamber E is perforatedso that the hydrocarbon will be supplied to the carbureting chamber E inthe form of jets. The pipe D exteriorly of the carbureting tank E isprovided with a globe valve F and a. glass section G. The valve F isemployed for shutting off the supply of hydrocarbon to the carburetingchamber E and the glass section. G is used so that one can observe whenthe hydrocarbon is flowing through the pipe Dtoward the carburetingchamber E. Opening into the reservoir A through the top of the latter isa compressed air supply pipe 0- which communicates with a suitablesource of air supply. The carbureting tank D is formed of twosemicylindrical sections as best shown in Fig. 4 and with theconfronting edges thereof flanged and connected together by hold-fastdevices as at H. Between the confronting cdges of the sections of thecarbureting tank E are positioned lead or soft metal gaskets I andextending between said gaskets is a screen or wire sieve J which isarranged over the perforated portion K of the pipe D within thecarbureting tank E. The screen J constitutes a means for separating thelight from the heavy hydrocarbon as the hydrocarbon is supplied to thecarbureting chamber E in the form of jets through the pipe D or in otherwords the screen J breaks up the hydrocarbon, so that a part of thehydrocarbon will be volatilized and ascend to the upper portion of thecarbureting chamber, and the remaining part of the hydrocarbon, 2 6.,the liquid hydrocarbon, will fall to the bottom of the carburetingchamber E. The volatilized hydrocarbon will pass through the screen J tothe upper part of the car bureting chamber E.

Arranged over the carbureting tank E is a tank M for the reception ofthe carbureted air and is connected at its ends by the pipes L to theupper portion of the carbureting tank E whereby the carbureted air isdischarged from the carbureting chamber E into the tank M. The tank issupported above the carbureting tank E by brackets N and thecarburetingtank E is supported above the floor or ground O by the legsP. The residual hydrocarbon within the carbureting chamber E, that is tosay, the liquid hydrocarbon which remains in the carbureting chamber Ewhen the supply is discontinued is exhausted from the chamber E by thepipe R which opens into a drain pipe 8, the latter extending to thereservoir A.

The pipe R opens into the carbureting chamber 4 and arranged inoperative relation with respect to the inner end of the pipe R is aspring controlled flap valve T which when the pressure is relievedwithin the carbureting chamber E, due to the discontinuing of thehydrocarbon and air supply, automatically opens and allows the remaininghydrocarbon within the carbureting chamber E to exhaust therefrom and bereturned to the reservoir A. The drain pipe S is provided with twobranch pipes U and V, the pipe U constituting an overflow pipe and whichcommunicates with the carbureting chamber E and prevents the hydrocarbonfrom rising too high within the carbureting chamber while the pipe V isused in communication with a sight glass V which allows the elevation ofthe hydrocarbon within the carbureting chamber be ing easily observed.That terminus of the drain pipe S which is connected with the reservoirA is inclosed by a casing X. provided with an opening Y closed by a flapvalve Z. The valve Z is spring pressed and is normally retained in aclosed posit-ion particularly during the operation of the machine.

Communicating with the tank M at the top thereof is a T-coupling aconnected by a branch pipe (Z. Communicating with the Tcoupling a is anoutlet pipe 7) which leads to the lamps, burners or to a suitablereservoir for storing the carbureted air. Mounted upon the T-couplingais a burner gage c or if desired a meter can be connected to theT-coupling to determine the amount of air carbureted. Projecting fromthe T-coupling a is a branch pipe 7'- which communicates with a downpipe -g opening into an air mixer h which is connected by a pipe 2 tothe cylinder 7c of a gasolene engine Z-. The engine Z- is of theordinary type and is provided with an exhaust pipe m, a. battery box -n,and an ignition or explosive chamber 0-. Upon the pipe (Z is installed aglobe valve -pfor controlling the supply of gas from the tank M to thegasolene engine.

Arranged in operative relation with respect to the engine Z is an airpump r which is driven through the medium of the belt s operativelydriven from the engine -Z. The air pump r is provided with an intakepipe --t and also communicates with the air reservoir -u, the latterbeing connected by a pipe r to the reservoir A to force the hydrocarbonupwardly into the pipe D and into the carbureting chamber E formed bythe tank E. The pipe 1; is provided with a spring controlled check valveL() and a globe valve The valve w controls the pressure of air to thereservoir A and the globe valve allows the supply of air to be shut 01fduring the operation of the machine, when it is desired to fill thereservoir A.

The reference character 1 denotes a compressed air supply pipe connectedto atapering nozzle 2 which extends into the bottom of the carburetingtank E and is perforated and is further positioned in proximity to thevalve T. The perforations in the nozzle 2 are indicated by the referencecharacter 3 and are so disposed that the liquid hydrocarbon whichaccumulates in the bottom of the carbureting chamber will be agitatedand subjected to the action of the air which is supplied to thecarbureting chamber E in the form of jets. The air passing through theliquid hydrocarbon in the lower portion of the carbureting chamber Ewill be carbureted and it will also be further enriched by thehydrocarbon which is sprayed against the screen J and the volatilizedhydrocarbon within the upper portion of the carbureting chamber E. Thenozzle is tapered so that the jets of air will be of uniform pressure asthe air is supplied to the carbureting chamber E.

What I claim is:

A method of carbureting air comprising the supplying of liquidhydrocarbon in the form of upwardly directed jet within a carburetingchamber, simultaneously with the supplying of the said upwardly directedjets of hydrocarbon breaking the jets ofhydro carbon up to atomize aportion of the hy drocarbon, collecting the remaining portion theenriched air with the atomized hydroof the supplled hydrocarbon at thebottom of carbon by passing the enriched air up the carburetlng chamber,passing upwardly through the said atomized hydrocarbon.

directed jets of air simultaneously and of In testimony whereof I affixmy signature 5 uniform pressure through jkthe collected hyin thepresence of two Witnesses.

drocarbon at the bottom 0' the carburet-ing chamber, and through thehydrocarbon that ROBERT DAWSON is falling toward the bot-tom of thecarbu- Witnesses: reting chamber thereby enriching the up- S. A.MOFARLAND, 10 wardly directed jets of air, and then mixing F. E.GAITI-IER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

